Window-sash construction



March 5, 1929.

o. M. EDWARDS ET AL WINDOW SASH CONSTRUCTION Filed Oct. 16, 1924 I N V EN TORS B Y/ @fw A TTORNEYS Patented Mar. 5, 1929.

UNITED sT-ATEs P ATENT OFFICE.

OLIVER M. EDWARDS AND HOWARD4 ALBERT CBONHILLER, OF SYBACUSE, NEW YORK, ASSIGNORS TO THE O. M. EDWARDS COMPANY, INC., 0F SYRACU SE, NEW YORK, A

CORPORATION OF N EW YORK.

WINDOW-SASH CONSTRUCTION.

Application led October 16, 1924. Serial No. 743,965.

In describing this invention, reference is had to the accompanying drawings in which like characters designate parts in'all of the views. l

Figure 1 is a front elevation of a sash embodying our invention.

Figure 2 is a sectional perspective view on line 2 2, Figure 1.

Figure 3 is a View similar to Figure 2 of another embodiment of our invention.

In sheet metal window sashes for motor busses, owing to the lightness of the ma terial, the sash members and especially the lower rail is liable to weave or distort'durp ing raising and lowering of the window, and

this invention has for its object means for reenforcing the sash member and particularly the lower rail without adding prohibitive weight or bulk thereto and also providin a way or guide for a rubber buffer or weat er strip, such reenforcing means also stiiening the sash rail against spreading, due to the action of the weather or buffer strip when e Uaging or resting on the sill.

his sash comprises generally, a sheet metal window sash having rails and stiles in the form of a channel open at their edges, these members being joined and stifened -by corner ironsv located within said members and means for re-enforcin the lower rail of the sash on which the andles are mounted and which rail is subject to twisting and weavin strains during the raising and lowering 0% the window sash. 1 designates the stiles and 2 and 3 the upper and lower rails.

4 designates the corner irons which are angular m'orm and to which the Stiles and rails are connected as by clamping members or screws 5, these corner irons being located in the-channels of the stiles and rails.

The reenforcing means is a strip in the corresponding form of a channel 6 having its side flanges 7 l ing against the front and rear walls of t e sash member and preferably extending between the inner margins of said side walls of the sash member and the wallsv 8 of an external groove 9 formed in the bottom of the channel formation of the sash member, the bottom of the reenforcing strip being preferably located toward or opposed to the open edge of the sash member or rail 3. The groove 9 is forthe purpose of receiving the margin of the glass pane in the usual manner.

'Ihe reenforcing strip 6 is located between the corner irons of the lower rail 3, but-not joined thereto and may be continuous or as shown Ain Figure 1, it may be made up of two or more sections spaced apart. The side flanges are secured to the opposing walls of the sash member by sweating, soldering', etc. The front and rear walls of the sash member are provided with inturned flanges 10 at the open edge of the sash meml ber and the bottomV 11 of the reenforcing strip is opposed to these flanges 10 and forms a passage or guide for a weather or buffer strip 12 having a base portion `13 located between the bottom 11 of the reenforcing strip and said flanges 10. These flanges 10 extend into grooves in the sides of the weather stri 12.

The hand es, not shown, for the s'ash, are located on the front wall of the sash member or lower rail 3 and the force applied to lift the sash tends to twist said member 3, especially if there is 'a handle at the center of the lower rail, or when two han- -dles are used and so located relatively to the joints at the corners of the sash that some of the lifting force applied to the handles tends to twist the lower; rail. Also oftentimes a personin raising the window takes hold of the lower rail at or near the center and lifts the sash, after preliminarily releasin the latches and. partly o ening the win w. In so lifting the sash e applies a weaving, twisting or bending force to the lower rail. The-'reenforcingstrip 6 gives s'uicient rigidity tothe rail 3 to prevent undue twisting andweaving thereof, and also when the |window closes, the. strain on the builer or weather strip 12, when it comes into engagement with the sill, tends to bend o r spread the front and rear walls of the rail 3 outwardly. The reenforcing strip prevents such bending outwardly or spreading of the sash member. Also theenforcing strip are shown as of less height-N than the side flanges 7 of theweather strip I 6, shown in Figure 2. However, in each case, the reenforcing strip prevents twisting and weaving of the light sheet metal sash when the buffer or weather strip is engaged with the sill and supporting the weight of the sash.

What we claim is:

1. In a metal window sash construction, the combination of a sash member in the form of a channel having front and rear walls, the channel being open at the edge of the sash and the front and rear walls being formed with inturned flanges at the edge of the channel, the edges of the flanges being spaced apart leaving a slot which constitutes the entrance of the channelyof the hollow sash member, a reinforcing member interposed between the walls of the channel and secured thereto, the reinforcing member being spaced apart from the flanges forming a way, the reinforcing strip holding the flanged margins of the sides of the sash member from flexing and spreading, a weather strip having a base arranged in the way and formed with grooves for receiving the flanges, the reinforcing strip extending the reater part of thelength of the sash memlier between the corners of the sash.

2. In a metal window sash construction, the combination of a sash, a thin sheet metal member in the form of a channel having front and rear walls, the channel being open at the edge of the sash and the front and rear walls being formed with inturned flan es at the edge of the channel, the edges of t e flange being spaced apart leaving a slot which constitutes the entrance of the channel of the hollow sash member, a reinforcing member interposed between the walls of the channel and secured thereto the reinforcing strip being spaced apart from the flanges forming a way, the reinforcing strip holding the flanged margins of the sides of the way from flexing and spreading, a weather strip having a base arranged f in the way and formed with grooves for receiving the flanges, the reinforcing strip extending the greater part of the length of the sash member between the corners of the sash, and being spaced apart from the base of the weather strip and from said inturned flanges, the reinforcingv strip having flanges lapping the walls of said channel and exl tending away from said inturned flanges whereby the margins of the walls formed with the intur'ned fianges below the reinforcing strip form the sides of the way for the base of the lweather strip. Y

In testimony whereof, we have hereunto signed .our` names at Syracuse, in the county of Onondaga, and State of New York, this 25th day of September, 1924.

OLIVER M. EDWARDS.

HOWARD ALBERT CRONMILLER. 

